Synology-SA-20:21 Zerologon

Publish Time: 2020-09-17 17:05:34 UTC+8

Last Updated: 2020-09-17 19:38:24 UTC+8

Severity
Critical
Status
Resolved

Abstract

A vulnerability allows remote attackers to bypass security constraints via a susceptible version of Synology Directory Server.

Affected Products

Product Severity Fixed Release Availability
Synology Directory Server Critical Upgrade to 4.4.5-0101 or above.

Mitigation

If you need immediate assistance, please contact Synology technical support via https://account.synology.com/support.

Detail

  • CVE-2020-1472
    • Severity: Critical
    • CVSS3 Base Score: 10.0
    • CVSS3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    • An elevation of privilege vulnerability exists when an attacker establishes a vulnerable Netlogon secure channel connection to a domain controller, using the Netlogon Remote Protocol (MS-NRPC), aka 'Netlogon Elevation of Privilege Vulnerability'.

Reference

Revision

Revision Date Description
1 2020-09-17 Initial public release.
2 2020-09-17 Update for Synology Directory Server is now available in Affected Products.